8975390830 Original 6WG1 Fuel injection pipe No.1 for Excavator

Isuzu original 6WG1 fuel injection pipe No. 1 (part number: 8975390830) is a key pipeline used in the high-pressure fuel system of Isuzu 6WG1 series diesel engines, usually referring to the high-pressure fuel pipe that connects the high-pressure fuel pump with the injector or common rail. This part number is the original Isuzu accessory identification code. According to the accessory information, the 6WG1 engine is widely used in large construction machinery and is mainly suitable for the Hitachi ZX450 excavator. Meanwhile, this engine may also be used for large equipment of other brands. In the accessory market, this fuel injection pipe is associated with other part numbers, such as 1-13342139-1.

This fuel injection pipe, as an original high-pressure fuel pipe, is designed to withstand the extremely high injection pressure (usually exceeding 2000 bar) of the common rail system. Its typical structure is multi-layer composite: the inner layer is made of special polymer or nylon material that is resistant to fuel corrosion, ensuring fuel purity; The intermediate reinforcement layer is woven or wrapped with high-strength steel wire, providing excellent tensile strength and resistance to pulse fatigue, preventing expansion or rupture under high pressure fluctuations; The outer layer is a synthetic rubber or thermoplastic sheath that is resistant to oil, ozone, and wear.

The maintenance core of this high-pressure fuel injection pipe lies in preventing leaks, standardized installation, and regular inspections. Regular inspection: It is recommended to visually inspect the pipe body for bulges, cracks, oil leaks, loose joints, or worn outer sheaths (especially at friction with adjacent components) every 500 working hours or during monthly maintenance. Use a clean white cloth to wipe the joint area and check for any trace oil leakage. Installation specification: When replacing, a new sealing gasket or sealing cone gasket must be used. Before disassembling the old pipe, the fuel system pressure needs to be released first.